How severe is CVE-2025-11789?

CVE-2025-11789 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-11789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-11789?

CVE-2025-11789 primarily affects Circutor Sge-plc1000 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-11789?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-11789 have an EU (EUVD) identifier?

Yes. CVE-2025-11789 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200227.

When was CVE-2025-11789 published?

CVE-2025-11789 was published on 2025-12-02 and last updated on 2026-06-17.

CVE-2025-11789

CVE-2025-11789 is a high-severity vulnerability in Circutor Sge-plc1000 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-200227
Weakness: CWE-125
Affected product: Circutor Sge-plc1000 Firmware
Published: 2025-12-02
Last modified: 2026-06-17

Description

Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'DownloadFile' function converts a parameter to an integer using 'atoi()' and then uses it as an index in the 'FilesDownload' array with '(&FilesDownload)[iVar2]'. If the parameter is too large, it will access memory beyond the limits.

Frequently asked questions

What is CVE-2025-11789?: Out-of-bounds read vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The 'DownloadFile' function converts a parameter to an integer using 'atoi()' and then uses it as an index in the 'FilesDownload' array with '(&FilesDownload)[iVar2]'. If the parameter is too large, it will access memory beyond the limits.
How severe is CVE-2025-11789?: CVE-2025-11789 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-11789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-11789?: CVE-2025-11789 primarily affects Circutor Sge-plc1000 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-11789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-11789 have an EU (EUVD) identifier?: Yes. CVE-2025-11789 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200227.
When was CVE-2025-11789 published?: CVE-2025-11789 was published on 2025-12-02 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso-sci/multiple-vulnerabilities-circutor-products-0

Affected products (2)

cpe:2.3:o:circutor:sge-plc1000_firmware:9.0.2:*:*:*:*:*:*:*
cpe:2.3:o:circutor:sge-plc50_firmware:9.0.2:*:*:*:*:*:*:*

More vulnerabilities in Circutor Sge-plc1000 Firmware

CVE-2021-33841 — Critical (CVSS 10.0): SGE-PLC1000 device, in its 0.9.2b firmware version, does not handle some requests correctly, allowing a remote attacker…
CVE-2025-11788 — Critical (CVSS 9.8): Heap-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowSupervisorParameters()'…
CVE-2025-11786 — Critical (CVSS 9.8): Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'SetUserPassword()'…
CVE-2025-11785 — Critical (CVSS 9.8): Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterPasswords()'…
CVE-2025-11784 — Critical (CVSS 9.8): Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. In the 'ShowMeterDatabase()'…
CVE-2025-11783 — Critical (CVSS 9.8): Stack-based buffer overflow vulnerability in Circutor SGE-PLC1000/SGE-PLC50 v9.0.2. The vulnerability is found in the…

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